Anyone Know What This Is?

IMG_1555 22Walking with Wrigley one morning at Gillam Bay, I spotted what looked like a fig. Having never seen a fresh fig anywhere in Abaco — let alone on the beach — I took a closer look. Upon inspection, I realized that though the item resembles a fig, it’s in fact very hard, as if it’s made of wood. It’s about 2″ long.

Knowing that “sea beans” are often found on the shores of the cay, I Googled them. And while I learned a lot – did you know there’s an annual International Sea-Bean Symposium focusing on sea beans, drift seeds and other flotsam?! — I couldn’t find any sea beans or drift seeds that looked like this.

Any suggestions as to what this might be?